CloakShare
Blog
Product updates, tutorials, and insights on secure document and video sharing. PDFs that actually expire, page-level analytics, watermark engineering.
2026-05-13
The 2026 Investor Data Room Playbook
How to build an investor data room that closes the round faster. 3-tier access structure, the engagement signals that predict real investors, and the 4 mistakes that quietly stall diligence for weeks.
2026-05-13
The 2026 Sales Document Tracking Playbook
What page-by-page document engagement actually tells you about deal probability, and how to use that data to drive follow-up calls that convert. The operational playbook for B2B sales teams.
2026-05-12
The 2026 Secure Document Sharing Playbook
Per-recipient tokenization, dynamic watermarks, page-level analytics, and auto-revoke patterns. The operational playbook for securely sharing PDFs, decks, and contracts in 2026.
2026-05-11
How to Track Sales Proposal Engagement (2026 Guide)
Stop sending proposals into the void. Compare four methods sales teams use to track which prospects opened, read, and forwarded their proposals — from free email tracking to API-first page-level analytics.
2026-05-10
How to Send a PDF That Expires (Auto-Revoke After X Days)
Send a PDF that auto-revokes after a date, view count, or recipient action. Compare four methods — free password tricks, Adobe DRM, Google Drive expiring links, and API-first auto-revoke.
2026-03-06
How to Track Who Viewed Your PDF in 2026
Four ways to track who opened and read your PDF — from email receipts to API-first analytics. Compare methods, costs, and reliability.
2026-03-06
Best Self-Hosted Document Sharing Tools in 2026
Compare 5 self-hosted document sharing platforms: CloakShare, Papermark, Nextcloud, OnlyOffice, and Stirling PDF. Licenses, features, and trade-offs.
2026-03-06
How to Watermark Documents Before Sharing
Static vs dynamic watermarks, why they matter for shared documents, and how to apply them automatically with an API. Honest security trade-offs included.
2026-03-06
How to Track Investor Deck Engagement in 2026
Track which slides investors spend time on, who returned for a second look, and who forwarded your deck. A practical guide to pitch deck analytics.
2026-03-06
DocSend Pricing in 2026: What You're Really Paying
DocSend pricing breakdown for 2026: per-seat costs, hidden limits, feature gating, and real-world team costs. Plus alternatives at every price point.
2026-03-06
Open Source Document Sharing Platforms Compared (2026)
Honest comparison of open-source DocSend alternatives: CloakShare, Papermark, and Nextcloud. Licenses, features, and when to choose each one.
2026-03-06
Best DocSend Alternatives for Developers in 2026
Compare open-source and commercial DocSend alternatives. CloakShare, Papermark, PandaDoc, Digify, and Google Drive — honest breakdown.
2026-03-06
Why We Open-Sourced CloakShare
The reasoning behind MIT licensing, self-hosting, and the open-core business model for a secure document sharing API.
2026-03-06
How We Built Page-Level Analytics for Shared PDFs
Technical deep dive: Poppler rendering, canvas-based viewing, IntersectionObserver tracking, and real-time engagement aggregation.
2026-03-06
How to Share Your Pitch Deck Without Losing Control
Track who views your deck, which slides hold attention, and whether investors forwarded it. Secure pitch deck sharing for fundraising.
2026-02-28
Secure Video Sharing API: HLS Streaming with Watermarks and Analytics
How to share videos securely with adaptive HLS streaming, canvas watermark overlays, watch time tracking, and anti-download protections.
2026-02-28
Self-Host Your Document Sharing Platform with Docker
Deploy a secure document and video sharing platform on your own infrastructure in under 5 minutes with Docker Compose.
2026-02-28
The Complete Guide to Building a Document Sharing API
Everything you need to know about building secure document sharing into your application: watermarks, access controls, analytics, and video.
2026-02-28
Introducing Cloak: Secure Document & Video Sharing as an API
Upload a file, get a secure link. Track views, watermark pages, stream video, set expiry — all via API. Open source.